Historical tsunamis · Sep 11, 1927, 10:15 PM UTC
1927 Crimea, Black Sea tsunami
Ukraine
The tsunami of Sep 11, 1927, 10:15 PM UTC originated near Crimea, Black Sea (Ukraine).
Key facts
- Date
- Sep 11, 1927, 10:15 PM UTC
- Cause
- Earthquake
- Magnitude
- M6.8
- Depth
- 17 km
- Maximum documented water height
- 1.00 m
- Deaths
- 11
- Injuries
- 122
- Houses destroyed
- 1
- Damage
- extreme (over US$ 25 million)
- Observation records
- 11
- Countries affected
- 3
It was triggered by a magnitude 6.8 earthquake at a depth of 17 km.
The highest documented water height was 1.00 m (Balaklava, Crimea, Ukraine).
11 observation sites in 3 countries are recorded.
Outside the source country, the earliest documented arrival was at Tuapse (Russia) after 0:49 h.
The database records 11 deaths.
Houses destroyed: 1.
Damage is estimated at extreme (over US$ 25 million).
Map of observation sites
11Each dot is a documented observation site; colour and size show the observed water height. The triangle marks the source.
Tsunami arrival times
Documented arrival times from the NOAA/NCEI database, showing the earliest recorded location per country. Coverage is incomplete: a country without an entry was not necessarily spared.
- 0:00 hEarthquake (origin) · Sep 11, 1927, 10:15 PM UTC
- 0:09 hUkraine · Yalta · 0.19 m
- 0:49 hRussia · Tuapse · 0.09 m
- 1:36 hGeorgia · Batumi · 0.10 m
10 places with a documented arrival time
Observations by country
| Country | Observation records | Maximum documented water height | Deaths | Earliest arrival |
|---|---|---|---|---|
| Ukraine | 8 | 1.00 m Balaklava, Crimea | — | 0:09 h |
 Georgia | 1 | 0.10 m Batumi | — | 1:36 h |
 Russia | 2 | 0.09 m Novorossiysk | — | 0:49 h |
Highest documented water heights
11 / 11Individual documented observations for this event. Heights come from different measurement types and sources; not every location has a measured height.
| Location / station | Observed height | Distance from source | Country |
|---|---|---|---|
| Balaklava, Crimea | 1.00 m | 72 km | Ukraine |
| Yevpatoriya | 0.20 m | 125 km | Ukraine |
| Yalta | 0.19 m | 29 km | Ukraine |
| Sevastopol | 0.12 m | 81 km | Ukraine |
| Batumi | 0.10 m | 657 km | Georgia |
| Mariupol | 0.09 m | 380 km | Ukraine |
| Novorossiysk | 0.09 m | 263 km | Russia |
| Tuapse | 0.09 m | 366 km | Russia |
| Feodosiya | 0.07 m | 99 km | Ukraine |
| Kerch | 0.07 m | 189 km | Ukraine |
| Odessa | 0.03 m | 373 km | Ukraine |
More tsunamis
Source: NOAA National Centers for Environmental Information (NCEI), Global Historical Tsunami Database. Confirmed events only. Deaths and damage are database estimates; older records are incomplete. Water heights come from different types of observation.